Notes:

--- "The Peerage of England" by Edward Kimber, Woodfall, 1766, page 175:
Henry Roper, Lord Teynham, succeeded his brother Philip in his honour and estate, June 1, 1727. He married in July 1733, ---- daughter of Edmund Powel, of Sandford, in Oxfordshire, Esq; by whom he has issue, now living, Mary Catherine, born Dec. 24, 1742; Winifred, born Dec. 5, 1743; and Thomas, born Feb. 3, 1744-5, who is married, and has a son and heir, and another son, born on Feb. 21, 1765.

--- "The London Magazine" 1773, Vol. 42, page 252 :
Marriages.
May 1. At Linstead lodge, Thomas Mostyn, Esq. third son to Sir George Mostyn, of Tallacre in the county of Flint. Bart. to the hon. Mary Catherine Roper, eldest daughter of the right hon. Henry Lord Teynham.

--- "The Gentleman's Magazine" 1773, page 377:
April 27. Tho. Mostyn, Esq; third son to Sir Geo. Moystyn, of Tallacre, Bart. to the hon. Miss Mary Catherine Roper, eldest dau. of lord Seynham.

--- "The Scots Magazine" 1773, Vol. 35, page 277:
April 28. At Listead Lodge, Thomas Mostyn, Esq; third son of Sir George Mostyn of Tallacre in Flintshire, Bt, to the Hon. Mary Catherine Roper, eldest daughter of Lord Teynham.

Family/Spouse: James Newsham. James (son of John Newsham and Anne Craggs) was born on 07 Oct 1715; died in Nov 1769 in Lille, France. [Group Sheet] [Family Chart]